Links between some psychological disorders and olfactory deficits are well documented, and screening tests have been developed koip share price to exploit these associations.Odors can take one of two routes to the olfactory receptors in the nasal epithelium, the orthonasal or retronasal route.This article discusses the potential use of the retronasal route to assess olfaction using gelatin-based stimuli delivered orally.Using a relatively new psychophysical method, the Single-Interval Adjustment Matrix task, we estimated vanillin thresholds merrick backcountry wet cat food for five healthy participants sampling small vanillin flavored gels.Our data demonstrate the feasibility of using solid-state gustatory stimuli to assess retronasal perception.